ready to get on the road

[xxpeppaxx]

So i bought an 89 na last summer with a cracked block for 500$ and i just finished my first year of college . I want to have this car on the road by august. Im going to need a new engine.Everyone thinks im crazy for wanting to put so much money in a car that came out the same year i did but ive been in love with this car since my mom had one when i was like 4 or 5. Im just wondering what im getting myself into. I want to put a 7mgte in it and not the orignal 7mge. Ive been looking at ebay a lot but im not too confident with some of them. Anyone have experience buying an engine from ebay? Also am i going to need to change the ecu from my ge when i replace it with a gte? What all am i going to need to replace. I know this has been asked countless times and ive read them all countless times but none of them address this very clearly. (or maybe ive yet to see them) Thankfully i have a mechanic stepdad that will be guiding and doing much of the work but i want to make sure im buying quality parts and everything i need.

here she is